Basic radiation physics and chemistry -- Basic cell biology and molecular genetics -- Methods of cell and molecular biology -- Ionizing radiation effects to the cytoplasm -- Damage to DNA by ionizing radiation -- Repair of radiation damage to DNA -- The cellular response to DNA damage -- Chromatin structure and radiation sensitivity -- Radiation-induced chromosome damage -- Modulation of radiation response via signal transduction pathways -- Radiation-induced apoptosis -- Early and late responding genes induced by ionizing radiation -- Cell death, cell survival and adaptation -- Bystander effects and genomic instability -- Tumor radiobiology -- Radiation biology of non-mammalian species: three eukaryotes and a bacterium.